Sand-pipe heater



Jan; 8, 1924. 1,480,393 4 C- Br JOHNS v SAND "PIP'E HEATER Filed Abril 28, 1925 INVENTOR. (7327/01? ,3mf0/772q5.

ATTORNEY.

structed attachment, whereby the sand Patented Jan. 8, 1924.

UNITED STATES PATENT, OFFICE...

crnLIoN BENJAMIN JOHNS, or EBENSBURG, PENNSYLVANIA, AssIeNon or oNn-HArr T0 JOSEPH o. CLARK, or GLEN CAMPBELL, P NNSYLVANIA.

SAND-PIPE HEATER.

Application filed April 28, 1923. Serial 1T0. 635,403.

To allwhomit may concern: a

Be it known that I, CHILION BENJAMIN JoHNs, a citizen of the UnitedStates, re-

siding at Ebensburg, in the county of: Cam

bria and Stateof Pennsylvania, haveinvented certain new and useful Improvements in Sand-Pipe Heaters, of which the following is a specification.

This invention relates to sanding. devices employed upon railway locomotives, street cars, mine motors, and the like, and has for one of its objects to provide a simply, conpipe is heated and the accumulation of moisture therein prevented, and the free flowing of the sand, provided.

Another object of the invention is to provide a device of this character which may be readily attached to or removed from the sand pipe for renewal or repairs and without detaching the sand pipe.

Another object of the invention is to provide a device of this character which maybe.-

applied without structural change to the right or left hand side of the locomotive or other vehicle.

With these and other objects in view, the invention consists in certain novel features of construction as hereinafter :shown and.

described and then specifically pointed out in the claims, and in the drawings illustra v tive of the preferred embodiment of the in vention Figure 1 is a side elevation of the improved device applied. Fig. 2 is an enlarged vation.

Fig.3 is a side elevation of the upper partof the improved device, with the coverportion removed. q

Figure 4 is a view ofv the electric resistance element detached-and extended.

V Fig. 5 is a plan view with the conductor wire sheating in section on the line 4;4: of

Fig. 2. t 1 The improved device comprises a tubular member 10 coupled to the sandconductor, indicated at.11, by a coupling member .12, the conductor adaptedto be connected to the sand dome, not shown, of a locomotive.

Surrounding the lower partof'the tubular vertical sectional ele-.

member 10 is a tubular guard or pettycoati 13, the latter provided with an inwardly directed stop flange 14 spaced from the'lower end of the guard 13 and forminga guide .for the conductor member 10, the latter be ing threaded to receive a clamp nut 15 which binds against the flange 14, and thus holds the member 10 from upward movement.

I Engaging around the tubular member 10 and bearing against the upper edge of the member 13 is a cap 16, the confrontingedges of the parts 13 and 16 being rabbeted as shown at 17, in Fig. 2.

Projecting from one side of the cap member 16 is a housing or casing 18 communicating at 19 with the interior of the cap and likewise provided with detachable closure 20. The housing 18 is provided with a threaded aperture to receive a tubular sheathing 21 for electric conductor wires, as

shown.

. Extendingfrom the upper portion of the guard member 13' are stop lugs 22 between which the housing member 18 engages, to

hold'the cap and its, housing in position either extending to the right or left,'as required.

The device is disposed in an inclined position with the lower: end bevelled as shown 7 at 23 inflFig. 1, or. in parallel relation to the rail, indicatedat 24, and relatively close to one of the car wheels, a portion of which is.

represented at 25; By employing two sets of the lugs 22, the device may be arranged upon either the right or left side of the 1000- motive bymerely reversing the position "of the cap 16, as will be obvious. v

A clamp nut 26 is applied to the tubular member 10 and bearing against the cap 16, as shown. The nuts 15 and 26 thus operate tofirmly clamp the two parts 13 and" 16 to.-

gether. I I

At its lower end, the tubular conductor 10 is counter bored for a distance as shown at any suitable manner, for instance by a strap 27 to prevent moisture from passingup- 28 encircling the member 13 and coupled at 29 to a standard 30 attached at 31 to a part 'ing heat to the conductor 13, and effectually preventing the accumulation of moisture therein.

The interior of the members 13 and 18 are lined with .a suitable non-heat conductive element such as asbestos, and 1nd1cated conventionally at 36.

The nut 15 is provided with a suitable yieldable moisture proof packing indicated at 3.7, while a similar water proof packing 38 is disposed between the nut 26 and the sag 16. i V

V y this simple arrangement, the conductor tube 10 is heated to efi'ectually prevent the accumulation of moisture therein, so the sand flows freely therethrough and is thus prevented from being clogged by absorbing moisture, as will .be obvious.

In rainy weather, the moisture gathers upon the outside of the parts 13 and 16 and isvcaused to flow around the lower edge of the member 13 and, thence upwardly by capillary attraction within the interior of the member 13, below the flange 14, but will be largely checked by the flange 14:- The moisture will also be inclined to flow up- .wardly by capillary attraction within the conductor 10, but will not flow past the counterbore portion 27.

Moreover the heat imparted to the conductor member 10' above the counterbored' portion will effectually prevent the accumulation of moisture and cause the free flow of the sand.

tion is disclosed in the drawings and set "forth 1n the specification, but 1t will be understood that modifications within the scope of the claims may be made in the construction without departing from the principle of' the invention or sacrificing any of its advantages.

, Having thus described the what is claimed as new is 1. A device of the class described com.- prising a tubular conductor member adapted invention,

to be coupled to a sand pipe, a tubular guard member enclosing a portion of said conductor member and with an inwardly directed bearing flange spaced from the lower end of the guard member and supporting the conductor member, a cap member engaging around the conductor member and bearing upon the guard member, a housing extending from the cap member and communicating with the interior of the same and adapted to contain an electrically conexternally of the tubular conductor and adapted to be coupled to the electrical coupling device within. the housing.

2. A device of the class described-com .ductive'coupling device, an electrical heatmg appliance within the guard member and prising a tubular conductor member adapted to be coupled to a sand pipe, a tubular guard member enclosing a portion of said conductor member and extending below the line of the same, said guard member having an inwardly directed bearing'fiange spaced from the lower end of the guard member and supporting the conductormemb'er, a

cap member forming a continuation of said guard member and engaging around the conductor member, and a heating appliance.

within the guard member and the cap and externally of the tubular conductor member.

3. A device of the class described come prising a tubular conductor member adapted .to be coupled to a sand pipe and open at the lower end and counterbored at the open end, a tubular guard. member enclosing a portion of said conductor member andextending below the lower counterbored por tion of the same, said guardmember having an inwardly directed bearing flange spaced from the lower end of the guard member and supporting the conductor member, a cap member forming a continuation of said body and engaging around the conductor member, and a heating appliance within the body and the cap and externally'of the ttu bular conductor member.

4. A device of the class described, com-. prising a tubular conductor member adapted .to be coupled to a sand pipe, a tubular guard memberenclosing a portion of said conductor member, a cap member engaging 7 around the conductor member and bearing:

upon the guard member, a housing extending-from thecap member and communicat ing with the interior of the same and adapted to containv an electrically conductive coupling device, means for revereibly supporting-said cap upon said tubular guard, and an electrical heating appliance within the guard memberand externally of the tubular conductor and adapted lto .be

coupled to the 'electrica1 coupling device f within the housing.

5. A device of the class described comprising a tubular conductor member adapted to be coupled to a sand pipe, a tubular guard supporting said cap upon said tubular guard, member enclosing a portion of said conand a heating appliance Within the guard ductor member, means for supporting said member and the cap and externally of the 10 guard member upon said conductor member,

; a cap member forming a continuation of tubular conductor member.

In testimony whereof, I affix my signature said guard member and engaging around hereto. V the conductor member, means for reversibly CHILION BENJAMIN JOHNS. 

